English definition of “straight”
DIRECTION › in a straight line: It's straight ahead. He was looking straight at me.
IMMEDIATELY › immediately: I went straight back to sleep.
sit up/stand up straight › to sit or stand with your body vertical
not think straight › If you cannot think straight, you are not thinking clearly about something: I was so tired, I couldn't think straight.
tell sb straight (out) › to tell someone the truth in a clear way: I told him straight that he wasn't getting a pay increase.
straight away › immediately: Go there straight away.